auto save

diy.py

+with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
+    a=file.readlines()
+final_sum=[]    
+for i in a:
+    data=i.split()
+    #print(data[0])
+    #print(data[1:]) 
+    sum=0
+    for b in data[1:]:
+        sum=sum+int(b)    
+    c = data[0]+str(sum)+'\n'
+    final_sum.append(c)
+with open(r'c:\Users\Administrator\Documents\lessoon13-1\sales_list.txt','a',encoding='utf-8') as file:
+    file.writelines(final_sum)
+
+
+